Lawrence o neill



(No Model.) Y L. ONEILL.

PAPER MAOHINE.

Patented 0 01:. 8, 1889.-

INVENTOH W (94%44;

WITNESSES BY MAW 3 1M ATTORNEYS- 15 a accelerated manufacture of paper, but also making-roll, and C the couching-roll, which rolls are journaled in boxes secured to ped- UNITED STATES PATENT OFFICE.

LAWRENCE ONEILL, OF PENN YAN, NEW YORK, ASSIGNOR TO A. CLINTON BROOKS, JOHN SHUTTS, AND JOHN T. ANDREWS, 2D, OF SAME PLACE.

PAPER-MACHINE.

SPECIFICATION forming part of Letters Patent No. 412,656, dated October 8, 1889. Application filed February 6, 1888. Serial No. 263,092. (No model.)

Penn Yan, in the county of Yates, in the State of New York, have invented new and useful Improvements in Paper-Machines, of

which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to the class of paper-making machines designated .cylinder machines; and the object of this invention is to more effectually prevent the adhesion of the pulp to the upper press-roll, and thus not only permit a much greater speed of the motion of the machine and a correspondingly produce a superior quality of paper, which is smoother than paper made by the ordinary machines of this class. I

To that end my invention. consists, essentially, in the combination, with the press-rolls and apron passing between said rolls in the usual manner, of a jacket composed either partly or entirely of rubber surrounding the upper press-roll and of greater circumference than said roll, and a roller supported adj ustably vertically above said press-roll and carrying the said jacket, all as hereinafter more fully described, and specifically set forth in the claim. I

In the accompanying drawings, Figure 1 is a side elevation of a paper-making machine embodyingmy invention, and Fig. 2 is a detached perspective View of the jacket.

A represents the pulp-vat; B; the socalled which passes from the couching-roll between the first set of press-rolls,'thence between the second set of press-rolls,and is thence guided by rolls a a. back to the couching-roll. The pulp being carried on top of that portion of the apron or felt. F which passes from the I .couching-roll Cbetween the press-rolls, and

receiving its first compression between the rolls R R, the upper press-roll R therefore requires a suitable facing to prevent the I pulp from adhering to it and to produce a uniform smooth surface on the pulp, and for that purpose said upper press-roll has hitherto been either formed entirely of vulcanized rubber or formed of other hard material and faced with vulcanized rubber or cloth. In lieu of this form of construction, I employ my improved facing, consisting of an endless jacket J, composed either wholly of rubber or of rubber incorporated in textile fabric. This jacket surrounds the upper press-roll O,

and is of considerably greater circumference than said roll, and is supported above the roll R by a suitable carrier, preferably of the form of a tightening-roller 1", arranged above and parallel with the press-roll and having the jacket extending around thetqp of it. The tightening-roller r is journaled in boXes or suitable bearings 19, which are supported adjustably vertically by set-screws c, or other suitable means, to allow the rollerr to be elevated when required to, tighten the jacket J. The tight hold of the jacket on the upper press-roller causes the former to move synchronously with the latter, and. the tension of the jacket causes the same to run smoothly between the two press-rolls R R andv press the pulp down upon the felt and leave it lying smoothly upon the same.

By the described jacket I provide the upper press-roll with a facing which is more durable and more effective in its operation and can be readily renewed when required.

What I claim as new, and desire to secure by Letters Patent, is

In a paper-machine, the combination, with the press-rolls R R and felt F, passing between s aid rolls, of the endless rubber jacket J, surrounding the upper roll R, bearings 19 17, arranged adj ustably vertically above said roll, and the roller r, journaled in said bearings and carrying the aforesaid jacket, substantially as described and shown, for the purposes set forth.

In testimony whereof I have hereunto .signed my name, in the presence of two witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 31st day of January, 1888.

LAWRENCE ONEILL.

Witnesses:

MARK W. DEWEY, O. H. DUELL. 

